Atom Explained in Simple Terms

What is the definition of matter?

• Anything that has mass and takes up space

• Anything that is visible to the naked eye

• Anything that is made up of atoms

• Anything that has a positive charge

Which subatomic particles are located in the nucleus of an atom?

• Protons and electrons

• Neutrons and electrons

• Protons and neutrons

• Only protons

What property of an atom determines its identity as a specific element?

• The number of electrons

• The number of neutrons

• The number of protons

• The total atomic mass

How is the atomic mass of an atom calculated?

• By adding the number of protons and electrons

• By adding the number of neutrons and electrons

• By adding the number of protons and neutrons

• By multiplying the number of protons by the number of neutrons